Modbus User Map; Real Time Clock - GE C30 Instruction Manual

5.2 PRODUCT SETUP
Slow EGD exchanges (500 to 1000 ms) are generally used for the transfer and display of data items. The settings for the
fast and slow exchanges are described below:
• EXCH 1 DESTINATION: This setting specifies the destination IP address of the produced EGD exchange. This is usu-
ally unicast or broadcast.
• EXCH 1 DATA RATE: This setting specifies the rate at which this EGD exchange is transmitted. If the setting is 50 ms,
the exchange data will be updated and sent once every 50 ms. If the setting is 1000 ms, the exchange data will be
updated and sent once per second. EGD exchange 1 has a setting range of 50 to 1000 ms. Exchanges 2 and 3 have a
setting range of 500 to 1000 ms.
• EXCH 1 DATA ITEM 1 to 20/50: These settings specify the data items that are part of this EGD exchange. Almost any
data from the C30 memory map can be configured to be included in an EGD exchange. The settings are the starting
Modbus register address for the data item in decimal format. Refer to Appendix B for the complete Modbus memory
map. Note that the Modbus memory map displays shows addresses in hexadecimal format. as such, it will be neces-
sary to convert these values to decimal format before entering them as values for these setpoints.
To select a data item to be part of an exchange, it is only necessary to choose the starting Modbus address of the item.
That is, for items occupying more than one Modbus register (for example, 32 bit integers and floating point values),
only the first Modbus address is required. The EGD exchange configured with these settings contains the data items
up to the first setting that contains a Modbus address with no data, or 0. That is, if the first three settings contain valid
Modbus addresses and the fourth is 0, the produced EGD exchange will contain three data items.

PATH: SETTINGS PRODUCT SETUP
 MODBUS USER MAP
5

The Modbus user map provides read-only access for up to 256 registers. To obtain a memory map value, enter the desired
address in the
ADDRESS
value of "0" in subsequent register
by "1". An address value of "0" in the initial register means "none" and values of "0" display for all registers. Different
values can be entered as required in any of the register positions.
ADDRESS
a) MAIN MENU

PATH: SETTINGS PRODUCT SETUP
 REAL TIME
 CLOCK
5-44


MODBUS USER MAP

ADDRESS
VALUE:
ADDRESS
MESSAGE
VALUE:
ADDRESS
MESSAGE
VALUE:
ADDRESS 256:
MESSAGE
VALUE:
line (converted from hex to decimal format). The corresponding value displays in the
lines automatically returns values for the previous
ADDRESS


REAL TIME CLOCK

SYNCRONIZING SOURCE:
None
 PRECISION TIME
MESSAGE
 PROTOCOL (1588)
 SNTP PROTOCOL
MESSAGE

 LOCAL TIME
MESSAGE

C30 Controller System
Range: 0 to 65535 in steps of 1
1: 0
0
Range: 0 to 65535 in steps of 1
2: 0
0
Range: 0 to 65535 in steps of 1
3: 0
0

Range: 0 to 65535 in steps of 1
0
0
Range: None, PP/IRIG-B/PTP/SNTP, IRIG-B/PP/PTP/
SNTP, PP/PTP/IRIG-B/SNTP
See below
See below
See below
5 SETTINGS
5.2.6 MODBUS USER MAP
line. A
VALUE
lines incremented
ADDRESS
5.2.7 REAL TIME CLOCK
GE Multilin